Sir because of you on going deep in concept of question I too got answer in 3 seconds ....my logic was that - Chances of winning is 2/5 ...so for 100% winning we just need our value to get 1 so we will see what value should be multiplied to get 1 ...so it's 5/2 hence it's the avg number of chances = 5/2 = 2.5 ....pls confirm was my approach right ?
Yes ! Since The problem is based on Geometric Distribution ,hence Avg or expectation Will be reciprocal of Probability of first success .Your logic works incredibly faster ...❤
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Sir because of you on going deep in concept of question I too got answer in 3 seconds ....my logic was that -
Chances of winning is 2/5 ...so for 100% winning we just need our value to get 1 so we will see what value should be multiplied to get 1 ...so it's 5/2 hence it's the avg number of chances = 5/2 = 2.5 ....pls confirm was my approach right ?
Yes ! Since The problem is based on Geometric Distribution ,hence Avg or expectation Will be reciprocal of Probability of first success .Your logic works incredibly faster ...❤